AN & NPT Fittings & Adapters, Fuel Line Fittings, Hose Couplers & more

No matter what you’re plumbing—brakes, fuel, vacuum, oil, nitrous—you can plumb it with help from Summit Racing Equipment! You can find all of the...

No matter what you’re plumbing—brakes, fuel, vacuum, oil, nitrous—you can plumb it with help from Summit Racing Equipment! You can find all of the automotive fittings you need right here, including a wide range of AN, NPT, fuel line and hose fittings, along with adapters and reducers to go from one to another, and so much more. Our huge selection means you can assemble the complex custom plumbing system your competition vehicle needs, restore your classic car with period-accurate components, or just keep your daily driver running right. Take a look at our options for AN Hoses, to go along with your fittings.

Top Brands

Starting now, you can shop from all the best brands of automotive fittings on the market, including Russell, Earl’s, Aeroquip, and Fragola, plus our dependable and budget-friendly Summit Racing brand.

Individual Parts

Part Groups

Results 1 - 25 of 43

Helix Fittings and Adapters HEXAFF916CX38B

Air Fittings, 3/8 Barb to 9/16 National Coarse Thread Air Fitting

Part Number: HLI-12606

Not Yet Reviewed

Estimated Ship Date: Nov 26, 2025 if ordered today

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Estimated Ship Date: Nov 26, 2025 if ordered today

Goodmark Fittings and Adapters GMK4462313865

HEATER PIPE FITTING; BLACK; ALUMINUM; 81-87 REGAL; GRAND NATIONAL; MODELS WITH TURBO V6 ONLY

Part Number: GMK-4462313865

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Helix Fittings and Adapters HEXAFF916CX516B

Air Fittings, 5/16 Barb to 9/16 National Coarse Thread Air Fitting

Part Number: HLI-12607

Not Yet Reviewed

Estimated Ship Date: Nov 26, 2025 if ordered today

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Estimated Ship Date: Nov 26, 2025 if ordered today

RESTOPARTS Supplied Fittings and Adapters GN10126

Fitting, Heater Pipe, 1986-87 Grand National

Part Number: OPG-GN10126

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Goodmark Fittings and Adapters GMK4462313864

HEATER PIPE FITTING; SILVER; ALUMINUM; 81-87 REGAL; GRAND NATIONAL; MODELS WITH TURBO V6 ONLY

Part Number: GMK-4462313864

Not Yet Reviewed

Estimated Ship Date: Feb 24, 2026 if ordered today

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Estimated Ship Date: Feb 24, 2026 if ordered today

Vibrant Performance BSP to NPT Adapter Fittings 10399

Fitting, Adapter, NPT to BSPT, Straight, Aluminum, Black Anodized, 1/8 in. BSP, 1/8 in. NPT, Each

Part Number: VPE-10399

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Radium Engineering AN to NPT Adapter Fittings 14-0148-10

Fitting, Adapter, AN to NPT, Straight, Aluminum, Black Anodized, -10 AN, 1/8 in. NPT, Each

Part Number: RDM-14-0148-10

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Nitrous Outlet NPT Fittings 60-01120-B

Nitrous Outlet 1/8" NPT x 1/8" NPT 45 Degree Fitting - Male/Female

Part Number: NXO-60-01120-B

Not Yet Reviewed

Estimated Ship Date: Nov 20, 2025 if ordered today

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Estimated Ship Date: Nov 20, 2025 if ordered today

Radium Engineering NPT Adapter Fittings 14-0358

3/8in SAE Male to 1/8in NPT Male Fitting

Part Number: RDM-14-0358

Not Yet Reviewed

Estimated Ship Date: Nov 28, 2025 if ordered today

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Estimated Ship Date: Nov 28, 2025 if ordered today

Nitrous Outlet NPT Fittings 60-58041-1/8

1/8" NPT 45 Degree Male To Female Adapter

Part Number: NXO-60-58041-18

Not Yet Reviewed

Estimated Ship Date: Nov 26, 2025 if ordered today

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Estimated Ship Date: Nov 26, 2025 if ordered today

Nitrous Outlet NPT Fittings 60-58041-3/4

3/4" NPT 45 Degree Male To Female Adapter

Part Number: NXO-60-58041-34

Not Yet Reviewed

Estimated Ship Date: Nov 26, 2025 if ordered today

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Estimated Ship Date: Nov 26, 2025 if ordered today

Nitrous Outlet NPT Fittings 60-58041-3/8

3/8" NPT 45 Degree Male To Female Adapter

Part Number: NXO-60-58041-38

Not Yet Reviewed

Estimated Ship Date: Nov 26, 2025 if ordered today

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Estimated Ship Date: Nov 26, 2025 if ordered today

Nitrous Outlet NPT Fittings 60-58042-1/4

1/4" NPT 90 Degree Male To Female Adapter

Part Number: NXO-60-58042-14

Not Yet Reviewed

Estimated Ship Date: Nov 26, 2025 if ordered today

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Estimated Ship Date: Nov 26, 2025 if ordered today

Nitrous Outlet NPT Fittings 60-58042-1/8

1/8" NPT 90 Degree Male To Female Adapter

Part Number: NXO-60-58042-18

Not Yet Reviewed

Estimated Ship Date: Nov 26, 2025 if ordered today

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Estimated Ship Date: Nov 26, 2025 if ordered today

Radium Engineering NPT Adapter Fittings 14-0553

10mm SAE Female to 3/8 in Barb Fitting

Part Number: RDM-14-0553

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Radium Engineering NPT Adapter Fittings 14-0332

Fitting, Adapter, NPT, Male to Female, 90 Degree, Aluminum, Black Anodized, 1/8 in. NPT, Each

Part Number: RDM-14-0332

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Vibrant Performance BSP to NPT Adapter Fittings 10398

Fitting, Male NPT To Female Bsp Adapter Fitting; Size: 1/8" NPT X 1/8" Bsp

Part Number: VPE-10398

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Radium Engineering AN to NPT Adapter Fittings 14-0148-06

Fitting, Adapter, AN to NPT, Straight, Aluminum, Black Anodized, -6 AN, 1/8 in. NPT, Each

Part Number: RDM-14-0148-06

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Radium Engineering AN to NPT Adapter Fittings 14-0148-08

Fitting, Adapter, AN to NPT, Straight, Aluminum, Black Anodized, -8 AN, 1/8 in. NPT, Each

Part Number: RDM-14-0148-08

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Tanks Inc. NPT to Hose Barb Fittings BF90

Fitting, Adapter, NPT to Hose Barb, 90 Degree, Brass, Natural, 1/4 in. NPT, 5/16 in. Hose Barb, Each

Part Number: TNK-BF90

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Radium Engineering Metric to NPT Adapters 14-0359

Fitting, Adapter, Metric to NPT, Straight, Aluminum, Black Anodized, M10 x 1.0, 1/8 in. NPT, Each

Part Number: RDM-14-0359

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Nitrous Outlet NPT Fittings 60-58042-3/8

3/8" NPT 90 Degree Male To Female Adapter

Part Number: NXO-60-58042-38

Not Yet Reviewed

Estimated Ship Date: Nov 21, 2025 if ordered today

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Estimated Ship Date: Nov 21, 2025 if ordered today

Nitrous Outlet NPT Fittings 60-58038-04

4AN 90 Degree JIC 37 Degree AN Male To NPT Female

Part Number: NXO-60-58038-04

Not Yet Reviewed

Estimated Ship Date: Nov 21, 2025 if ordered today

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Estimated Ship Date: Nov 21, 2025 if ordered today

Nitrous Outlet NPT Fittings 60-58041-1/2

1/2" NPT 45 Degree Male To Female Adapter

Part Number: NXO-60-58041-12

Not Yet Reviewed

Estimated Ship Date: Nov 26, 2025 if ordered today

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Estimated Ship Date: Nov 26, 2025 if ordered today

Nitrous Outlet NPT Fittings 60-01125-B

Nitrous Outlet 1/8" NPT x 1/8" NPT 90 Degree Fitting - Male/Female

Part Number: NXO-60-01125-B

Not Yet Reviewed

Estimated Ship Date: Nov 21, 2025 if ordered today

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Estimated Ship Date: Nov 21, 2025 if ordered today

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